We're dividing 753995 by 45 
The aim is to understand the frequency of 45 in 753995.

Going ahead to step 1:
The number 45 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 45

Let's proceed to step 2:
75 divided by 45 is 1 with a remainder of 30.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 45 from 75 leaves us with 30.
Grab the next digit (3) from the dividend, add it to 30, then carry on: 303 / 45

On to step 3:
The number 45 fits into 303 6 times, leaving a remainder of 33.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
The remainder is 33 after subtracting 270 from 303.
Take the next digit (9) from the dividend and append it to 33, then repeat: 339 / 45

Let's proceed to step 4:
339 divided by 45 is 7 with a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 167.0
The remainder is 24 after subtracting 315 from 339.
Append the next digit (9) from the dividend to 24 and continue with: 249 / 45

Advancing to step 5:
45 can be fit into 249 5 times, resulting in a remainder of 24.
The number 5 becomes the next digit in our result. 
Result so far: 1675.0
Subtracting 225 from 249 leaves us with 24.
Grab the next digit (5) from the dividend, add it to 24, then carry on: 245 / 45

Going ahead to step 6:
45 can be fit into 245 5 times, resulting in a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 16755.0
If we subtract 225 from 245, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 7:
45 goes into 200 4 times with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 16755.4
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
If we divide 200 by 45, we get 4 and a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 16755.44
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 16755.44 with a remaining 0.02.